Week by week, 4 to 42
The size your baby is compared to, what is developing, what you may be feeling, and one thing worth doing this week. Each week has its own illustration.
PreBaby counts your week from the date you set, tells you what is changing, and keeps what you feel in one place. Contractions, kicks, appointments, hospital bag — without the noise.
PreBaby 4.0 is a rebuild, and it lands on the App Store in —days —hours —min
A calmer one-handed design, a contraction timer and kick counter in the same flow, hospital bag and birth preferences, a photo album, partner sharing, and logs that carry on after birth. A free update if you already have PreBaby.
See it on the App StoreEvery review below is a real App Store review, quoted in full with the reviewer's own nickname and date. The Turkish originals are translated here.
A wonderful companionIt supported me through every stage of my pregnancy. I could follow my baby’s development week by week, and the due date was more accurate than in the others. Thank you to everyone who worked on it.
A lovely pregnancy appI started using the app in my 16th week. The content has kept getting better. Its reminders made my pregnancy more enjoyable. And it’s great that my husband can follow along in the app too. Well done.
Well madeA really well-made app — we follow the pregnancy week by week. It has the information that matters. Thanks to the people who made it.
Nothing here is a plan for later. It is what the app does today.
The size your baby is compared to, what is developing, what you may be feeling, and one thing worth doing this week. Each week has its own illustration.
Tap when one starts and when it stops. The app keeps the length, the gap and the pattern, so you have something concrete to read out when you call.
Count movements in a session and keep the history, so what is usual for your baby is visible rather than remembered.
Mood, symptoms, water, weight, sleep, photos and notes. One timeline instead of six apps.
Hospital bag, shopping list, birth preferences and the questions you meant to ask at your appointment.
Invite your partner or close family to follow your week. You decide who sees what, and you can close that door again.
A poppy seed at four weeks, a lemon at twelve, a small watermelon at thirty-nine. Thirty-nine illustrations, sculpted as soft clay, so the week you are in looks like something instead of a number.
See the week-by-week guide
4
8
12
16
20
24
28
32
36
40 Enter your due date, or your last period and let the app do the 280-day count. It works out your week and day from there.
Read what is happening now, and log whatever you want to remember. No account needed — it stays on your phone.
Sign in only if you want a backup or want to invite your partner. Everything you already wrote comes with you.
What you write in PreBaby is the kind of thing you would tell one person. It is treated that way.
Yes. Downloading PreBaby and using the week-by-week content, the logs, the contraction timer, the kick counter and the lists costs nothing. There is an optional subscription, PreBaby Plus, which adds extras on top; you are never asked for it to track your pregnancy.
No. You can use the whole app without signing in, and in that case everything you write stays on your device. You would sign in only if you want a backup you can restore on a new phone, or if you want to invite your partner to follow along.
Yes. PreBaby is built to work offline: your week, your logs and your lists are all on the device. If you do have an account, changes sync when you are back online.
No. PreBaby is a tracker and a journal. The week-by-week content is general information — measurements are averages and do not describe any individual pregnancy — and it does not diagnose, treat or replace care. Anything that worries you is a reason to contact your own midwife or doctor.
The app is available in 14 languages, including English, Turkish, Spanish, Portuguese, German, French, Italian, Arabic, Hindi, Indonesian, Japanese, Korean and Chinese. This website is published in five of them.
Only if you invite them. You can share your week with a partner or with close family through a link, choose what they are allowed to see, and remove their access at any time.
Set your date, and the app takes it from there.
Download free on iPhone iPhone · free · no account needed